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Who’s ahead in the Massachusetts Senate race?

An updating average, accounting for each poll’s quality, recency, sample size and partisan lean.

Our average includes all candidates that FiveThirtyEight considers “major.” Candidates with insufficient polling data are not displayed in the averages. State polling averages are adjusted based on national trends, which means candidates’ averages can shift even in the absence of fresh state polls. Read more about the methodology.

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ADULTS

V

VOTERS

LV

LIKELY VOTERS

RV

REGISTERED VOTERS

PollsterResultNet result
Datesi

SAMPLE TYPES

A

ADULTS

V

VOTERS

LV

LIKELY VOTERS

RV

REGISTERED VOTERS

PollsterResult

Polls ending Oct. 29, 2020

U.S. Senate, Massachusetts, 2020

929LV
Oct.23-30
929LV
Markey
60%
Markey
60%

Markey

60%

O'Connor

29%
29%
O'Connor  Markey+31

Oct. 20, 2020

U.S. Senate, Massachusetts, 2020

713LV
Oct.14-21
713LV
Markey
65%
Markey
65%

Markey

65%

O'Connor

26%
26%
O'Connor  Markey+39

Sept. 16, 2020

U.S. Senate, Massachusetts, 2020

907LV
Sep.16-17
907LV
Markey
50%
Markey
50%

Markey

50%

O'Connor

40%
40%
O'Connor  Markey+10

Aug. 24, 2019

U.S. Senate, Massachusetts, 2020

1,008RV
Aug.23-25
1,008RV
Pemberton
31%
Pemberton
31%

Pemberton

31%

Baker

56%
56%
Baker  Baker+25
1,008RV
Aug.23-25
1,008RV
Liss-Riordan
35%
Liss-Riordan
35%

Liss-Riordan

35%

Baker

54%
54%
Baker  Baker+19
1,008RV
Aug.23-25
1,008RV
Kennedy
49%
Kennedy
49%

Kennedy

49%

Baker

41%
41%
Baker  Kennedy+8
1,008RV
Aug.23-25
1,008RV
Markey
44%
Markey
44%

Markey

44%

Baker

45%
45%
Baker  Baker+1

Oct. 27, 2018

U.S. Senate, Massachusetts, 2018

502LV
Oct.25-28
502LV
Warren
54%
Warren
54%

Warren

54%

Diehl

32%

Ayyadurai

6%
32%
DiehlWarren+22
500LV
Oct.24-28
500LV
Warren
56%
Warren
56%

Warren

56%

Diehl

34%

Ayyadurai

4%
34%
DiehlWarren+21
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